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A Channel Catfish (Ictalurus punctatus) from the Verdigris River, Oklahoma, wasfound to harbor a ciliate,Trichodinasp., on its gills. There are three previously reported species ofTrichodinafrom North AmericanI. punctatus, but none from fish hosts in Oklahoma. We thereforedocument a new geographic record for a trichodinid from any fish in the state.
Applied Ecology & Conservation